:root {
    --bg-dark: #0d0a08;
    --panel-bg: #161311;
    --border-color: #201a17;
    --accent-color: #e87a32; /* Orange accent */
    --accent-hover: #f18c4b;
    --text-main: #ffffff;
    --text-dim: #a0a09e;
    --glass-bg: rgba(22, 19, 17, 0.7);
    --panel-width: 300px;
    --header-height: 56px;
    --radius-s: 4px;
    --radius-m: 8px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    height: 100vh;
    overflow: hidden;
    user-select: none;
}

/* Header */
.app-header {
    height: var(--header-height);
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 100;
}

.header-info {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.70rem;
    color: var(--text-dim);
    opacity: 0.5;
    white-space: nowrap;
    transition: opacity 0.3s;
}

.header-info:hover {
    opacity: 0.9;
}

.slider-with-val {
    display: flex;
    align-items: center;
    gap: 8px;
}

.slider-with-val input[type="range"] {
    flex: 1;
}

.value-input {
    width: 50px;
    background: transparent;
    border: none;
    border-bottom: 1px solid transparent;
    color: var(--text-main); /* Changed from --text-color to --text-main */
    font-size: 13px;
    text-align: right;
    padding: 2px 0;
    transition: border-color 0.2s;
    -moz-appearance: textfield;
    appearance: textfield;
}

.value-input:hover, .value-input:focus {
    border-bottom-color: var(--accent-color);
    outline: none;
}

/* Hide spin buttons */
.value-input::-webkit-outer-spin-button,
.value-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.unit-tag {
    font-size: 11px;
    color: var(--text-dim);
    width: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-logo {
    height: 38px; /* Slightly smaller than header height (56px) */
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 5px rgba(232, 122, 50, 0.3));
}

.logo-text {
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.05em;
}

.version-badge {
    font-size: 0.65rem;
    background: var(--border-color);
    padding: 2px 6px;
    border-radius: 10px;
    color: var(--text-dim);
    margin-left: 8px;
}

/* App Container */
.app-container {
    display: grid;
    grid-template-columns: var(--panel-width) 1fr var(--panel-width);
    grid-template-rows: 1fr; /* Will become 1fr auto when filmstrip is visible */
    height: calc(100vh - var(--header-height));
    transition: grid-template-rows 0.3s ease;
}

.app-container.with-filmstrip {
    grid-template-rows: 1fr 160px;
}

/* Panels */
.side-panel {
    background-color: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    min-width: 0;
    max-width: 300px;
}

.scrollable-panel {
    padding: 8px 0; /* Add top/bottom padding for the container */
}

/* Viewport Overlay & Picker */
.viewport-panel {
    position: relative;
}

.viewport-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 100;
    cursor: crosshair;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

.viewport-overlay.hidden {
    display: none;
    pointer-events: none;
}

.picker-cursor {
    width: 40px;
    height: 40px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    position: relative;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    pointer-events: none;
}

.picker-cursor::before,
.picker-cursor::after {
    content: '';
    position: absolute;
    background: var(--accent-color);
    pointer-events: none;
}

.picker-cursor::before {
    width: 100%;
    height: 2px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.picker-cursor::after {
    height: 100%;
    width: 2px;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}

.picker-label {
    margin-top: 15px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    pointer-events: none;
    border: 1px solid var(--accent-color);
}

.panel-section {
    padding: 16px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-m);
    margin: 8px 12px;
    transition: var(--transition);
}

.panel-section:hover {
    background-color: rgba(255, 255, 255, 0.04);
    border-color: rgba(232, 122, 50, 0.2);
}

.smear-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 5;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    font-weight: 600;
}
.brand-tag {
    font-size: 0.65rem;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 1px 4px;
    border-radius: 2px;
}

.sub-panel-section {
    border: none;
    margin-bottom: 0;
    padding: 0;
    border-radius: 0;
    background: transparent;
}

/* Ensure no nested margins - Global for both panels */
.panel-section .panel-section {
    margin: 12px 0 0 0;
    padding: 12px 0 0 0;
    border: none;
    border-top: 1px solid var(--border-color);
    background: transparent;
    border-radius: 0;
}

.file-info-mini {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,0.05);
    padding: 6px 10px;
    border-radius: 4px;
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--accent-color);
}

.btn-icon-mini {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0 4px;
    line-height: 1;
}

.btn-icon-mini:hover {
    color: #ff4d4d;
}

.button-group-toggle {
    display: flex;
    background: rgba(255,255,255,0.05);
    border-radius: 4px;
    padding: 2px;
    margin-top: 4px;
}

.btn-toggle {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-dim);
    padding: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
}

.btn-toggle.active {
    background: var(--accent-color);
    color: #000;
    font-weight: 600;
}

.flex-row-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.btn-text-tiny {
    background: none;
    border: none;
    color: var(--accent-color);
    font-size: 0.7rem;
    cursor: pointer;
    text-transform: uppercase;
    padding: 0;
}

.picker-control {
    display: flex;
    gap: 10px;
    align-items: center;
}

.coords-display {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text-dim);
    background: rgba(0,0,0,0.2);
    padding: 4px 8px;
    border-radius: 4px;
    min-width: 85px;
    text-align: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    cursor: pointer;
    color: var(--text-main);
}

.checkbox-label input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
}

.format-hint {
    display: block;
    font-size: 0.85rem;
    margin-top: 12px;
    color: var(--text-dim);
}
/* Viewport */
.viewport-panel {
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.viewport-tools-header {
    height: 48px;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 10;
    flex-shrink: 0;
}

.viewport-content {
    flex: 1;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0; /* Remove padding to avoid grab glitches at edges */
    background: #0d0d0f;
}

.viewport-content.grabbing {
    cursor: grabbing !important;
}

.viewport-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 400px;
    height: auto;
    opacity: 0.8;
    z-index: 1;
    pointer-events: none;
    transition: opacity 0.4s ease, visibility 0.4s;
    filter: drop-shadow(0 0 20px rgba(0,0,0,0.5));
}

.viewport-logo.hidden {
    opacity: 0;
    visibility: hidden;
}

/* Custom Scrollbars for Viewport */
.viewport-content::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
.viewport-content::-webkit-scrollbar-track {
    background: #0d0d0f;
}
.viewport-content::-webkit-scrollbar-thumb {
    background: #2a2a2e;
    border-radius: 4px;
}
.viewport-content::-webkit-scrollbar-thumb:hover {
    background: #3a3a3e;
}

.canvas-container {
    position: relative;
    box-shadow: 0 40px 100px rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin: auto; /* Centering in flex parent with overflow */
}

canvas {
    display: block;
}

.image-info, .view-controls {
    background: rgba(255,255,255,0.03);
    padding: 4px 12px;
    border-radius: var(--radius-s);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8rem;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-dim);
    padding: 12px 0;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    background: rgba(232, 122, 50, 0.05);
}

.footer-controls {
    margin-top: auto;
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-m);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.01);
    position: relative;
    overflow: hidden;
}

.drop-zone:hover {
    border-color: var(--accent-color);
    background: rgba(232, 122, 50, 0.04);
}

.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.icon-upload {
    color: var(--accent-color);
    filter: drop-shadow(0 0 10px rgba(232, 122, 50, 0.2));
}

.drop-text {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.4;
}

.drop-text span {
    color: var(--accent-color);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.file-types {
    font-size: 0.7rem;
    color: var(--text-dim-extra);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Mini File List (Left Panel) */
.mini-file-list {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 4px;
}

.file-item-mini {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px;
    border-radius: var(--radius-s);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.file-item-mini:hover {
    background: rgba(255, 255, 255, 0.06);
}

.file-item-mini.active {
    background: rgba(232, 122, 50, 0.1);
    border-color: rgba(232, 122, 50, 0.3);
}

.file-thumb-mini {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    background-size: cover;
    background-position: center;
    background-color: #000;
}

.file-info-mini {
    flex: 1;
    overflow: hidden;
}

.file-name-mini {
    font-size: 0.75rem;
    color: var(--text-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-remove-file {
    opacity: 0;
    transition: opacity 0.2s;
    background: none;
    border: none;
    color: var(--text-dim-extra);
    cursor: pointer;
    padding: 4px;
    font-size: 1rem;
}

.file-item-mini:hover .btn-remove-file {
    opacity: 1;
}

.btn-remove-file:hover {
    color: #ff4d4d;
}

/* Badges and tags */
.count-badge {
    background: var(--accent-color);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Export Sub Options */
.export-sub-options {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.option-row {
    padding: 8px 0;
}

.sub-controls {
    padding-left: 28px;
    border-left: 1px solid var(--border-color);
    margin-bottom: 12px;
    padding-bottom: 8px;
}

.control-group-mini {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.control-group-mini label {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input-mini {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-s);
    color: var(--text-main);
    padding: 6px 10px;
}
.file-list-container {
    margin-top: 16px;
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius-s);
    max-height: 300px;
    overflow-y: auto;
}

#file-list {
    list-style: none;
    font-size: 0.75rem;
    color: var(--text-dim);
}

#file-list li {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
}

#file-list li.processing {
    color: var(--accent-color);
    background: rgba(232, 122, 50, 0.1);
}

#file-list li.done {
    color: #43a047;
    text-decoration: line-through;
}

.file-label {
    color: var(--accent-color);
    cursor: pointer;
    text-decoration: underline;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 4px;
    margin-right: 16px;
    background: rgba(0,0,0,0.2);
    padding: 2px;
    border-radius: var(--radius-s);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn.active {
    background: var(--accent-color);
    color: #000;
}

/* Preset Controls */
.preset-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

#preset-name {
    background: #1a1a1c;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px;
    border-radius: var(--radius-s);
    font-size: 0.85rem;
    outline: none;
}

#preset-name:focus {
    border-color: var(--accent-color);
}

.preset-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-s);
}

/* Filmstrip Panel */
.filmstrip-panel {
    grid-column: 1 / -1;
    height: 160px;
    background: var(--panel-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 50;
}

.filmstrip-header {
    height: 32px;
    padding: 0 12px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 20px;
    background: rgba(0,0,0,0.2);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.filmstrip-actions {
    display: flex;
    gap: 12px;
}

.btn-text {
    background: none;
    border: none;
    color: var(--accent-color);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 2px 4px;
}

.btn-text:hover {
    text-decoration: underline;
}

.filmstrip-info {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.filmstrip-scroll {
    flex: 1;
    display: flex;
    gap: 12px;
    padding: 12px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
}

/* Custom scrollbar for filmstrip */
.filmstrip-scroll::-webkit-scrollbar {
    height: 6px;
}
.filmstrip-scroll::-webkit-scrollbar-track {
    background: transparent;
}
.filmstrip-scroll::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
.filmstrip-scroll::-webkit-scrollbar-thumb:hover {
    background: #444;
}

.filmstrip-thumb {
    flex: 0 0 150px;
    height: 100%;
    background: #000;
    border-radius: var(--radius-m);
    position: relative;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    overflow: hidden;
}

.filmstrip-thumb:hover {
    border-color: #444;
}

.filmstrip-thumb.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(232, 122, 50, 0.3);
}

.filmstrip-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    transition: var(--transition);
}

.filmstrip-thumb.active img, .filmstrip-thumb:hover img {
    opacity: 1;
}

.thumb-checkbox {
    position: absolute;
    top: 6px;
    left: 6px;
    width: 18px;
    height: 18px;
    border-radius: 3px;
    border: 1px solid rgba(255,255,255,0.3);
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: var(--transition);
}

.filmstrip-thumb.selected .thumb-checkbox {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.filmstrip-thumb.selected .thumb-checkbox::after {
    content: '✓';
    color: #000;
    font-size: 12px;
    font-weight: bold;
}

.thumb-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    font-size: 0.65rem;
    padding: 12px 6px 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    pointer-events: none;
}

.hidden {
    display: none !important;
}